Wuggit is another word for a Solipsist. (Solipsism: extreme preoccupation with and indulgence of one's feelings, desires, etc.; egoistic self-absorption.
Thus Wuggit describes a self deluded egomaniac such as those complete inadequates that are the worst auditions in such talent contests as the X factor. Such people are named after the creatures in a fictional work at www.drumrattle.com

'Wuggits are subject to intense emotional highs and lows triggered by not only the alcoholic **** they imbibe but by the amount of full and adoring attention of all those that surround them. Since they are universally despised by the more advanced species (I include demented amoeba in this category) their lives tend to be desperately lonely and unfulfilled.'